Packing machinery



April 18, 1933. R CLARKSON 1,903,959

PACKING MACHINERY Filed Nov. 4, 1930 2 Sheets-Sheet l Apnl 18, 1933. R. CLARKSON PACKING MACHINERY 2 Sheets-Sheet 2 INVENTOR Filed Nov. 4, 1950 Patented Apr. 18, 1933 UNITED STATES PATENT anew RUSSELL onanxson, or nnrrronn; LONDON, ENGLAND PACKING Macnnvmrr' Application filed November 4, 1930, Serial No. 493,439, and in Great Britain November-2s, 1929.

, This invention relates to; packing machin-l cry, and more particularly vto machines for packing cigarettes in: cartons-of. the slide and shell type. I 7

.5 The invention has for its object to provide improved means for feeding out fiattened shells fr'om-a'magazine, opening them andinserti-ng the loaded slides therein.

The present invention consists of fan-apparatusfor assembling cartons of the-slide and shell type comprising means adapted to remove fiat shells from a magazine and deliver them to a device where they are opened by external pressure means for thrustin the opened shells on to a mouthpiece and means for inserting slides through the mouthpiece and into the opened shell. r I :The invention .will be more particularly described with referenceto the accompany ingdrawings, in which j Fig. 1 is a side elevationof a portion of a cigarette pacln'ng machine showing the 'invention appliedthereto.

Figs. 2 an d 3 show fragmentary views, of Fig. 1- with the workingparts of-the inven tionindifierent positions.

Fig. 4 shows a section of the machine looking in the direction of the arrow A, Fig. 1. Fig. 5. is a plan view of a portion ofFig. 4 in the direction of the arrow B.

Referring to the drawings, the flattened shells'l are stacked in a magazine '2, and a reciprocating tooth '3 movesbeneath the same 5 and ejects theshells one at a time, and carries them a shortpdistance outside of the magazine. I r 1 The baron which the reciprocating tooth 3-is formed has another tooth 4 formed in V 0 advance of the main feedtooth, and this forward tooth is arranged to carryv an ejected shell further distance on the next stroke of the reciprocating bar 5. IThe barfiis reciprocated by a pivoted lever 6, the pivot: of 5 which 1s not'shown, the lever 6 being oscil lat'ed by a link 7 operatedby a cam (not shown).

The lever 6fis connected by another link I I On the next stroke'of the reciprocating bar i 5 the forward tooth 4 carries the shell a further stage, and deposits it in the position shown in Fig. 2' so that it lies diagonally between the corner of a fixed block 13 and the tooth 4. Thejshellis guide-d into place "and caused tofkeepcthis position by means of a pivoted plate 14, pressed outwards by a spring into the slopingposition show-n in Fig. 1.

The pressure of the shell, as the latter opens, causes the plate 14 to turn on its pivot until it "becomes vertical as shown in Fig; 3. In some instances, the plate 14 may be mev ch-anicallyoperatedby a rod 15 reciprocated by a'ca m 16'and' pressing on an extension 17 of. the plate 14. 7 V

WVhen the shell has arrived in this position, the fingers 19 and: 20 ar-e operated to give the shella double curvature as shown in Fig. 2. The tooth 4 continues to press on the lower corner'of the shell, and this pressure, combined with the curvature imparted to the shell, causes the latter to open to its normal rectangular section.

21 pivoted at 22, the finger 19 being directly operated, as shown, whilstthe finger 20 is pivoted at 23 and operated through alink 24.

The bar-21 is rocked aboutits, pivot bya 85 pivoted dog 25 on the lever 6-which engages with a roller 26 on thelever21, a stop screw 27 being provided to support the lever 21 in its inoperative position, 3 I V Nhen the lever 6 swings to the left in Fig. 1, 0

the feed tooth 55f c c "The fingers 19 and 20 are operated by a bar l the dog 25 strikes the roller 26 and liftsthe bar 21 about its pivot. On the return stroke of the lever 6, the dog rotates on its pivot and the lever 21 remains stationary.

At the moment when the shell is commencing to open, a guide 28 pivoted at 29 and 0p erated by a link 30 from a cam 31 israised above the surface of the bed so that it forms a wall against which the open shell is formed into a truly rectangular section in co-operation with the surface of the bed and the fixed block 13. r

While these movements have been taking place, a loaded slide has been brought into position in line with the shell by apparatus which forms no part of the invention, and

a chain conveyor 32 furnished with pusher pieces 33 is arranged to carry the loaded slides 34 along towards the open shell.

Each pusher piece 33 is provided with a spring pressed member 35 which retains the rear closure flap of the slide in its proper position so that the same will not foul the edge of the shell as'the two pieces are assembled. V V

A spring mouthpiece 36 is located between the slide and the shell, and as the slide approaches the shell, the latter is simultaneously pushed on to the springs of the mouthpiece by an oscillating forked pusher 37.

The pusher 37 is pivoted at 38 and operated by a link 39 from a cam 40. When the shell has been thrust on to the mouthpiece the conveyor carries theslide through the mouth piece into the shell, and at this instant the pusher 37 is moved beneath the surface of the machine bed sothat continued movement of the conveyor .ejectsthe finished carton from the side of the machine- 9 What I claim as my invention and desire to secure by Letters Patent is 1. In apparatus for opening. collapsed shells of cartons of the slide and shell type, the combination with means for engaging and exerting thrust onthe outer folded edges of the shell to urge them toward each other, of means acting simultaneously with said first named means and engaging said shell to impart a double curvature thereto in the direction of the thrust exerted by said first named means to ensure movement of the flattened folds in the proper direction.

2. In apparatus 'for opening collapsed shells of cartons of the slide and shell type, the combination with means for engaging and exerting thrust on the outer folded edges of the shell to urge them toward each other, of me'ans'acting simultaneously'with said first named means and engaging said shell to impart adouble curvature thereto in the dircctionof the thrust exerted by said first named means to ensure movement of the flattened folds in the proper. direction, said last named means comprising members engaging each of the broad shell faces at a point adjacent the contiguous outer fold.

3. In apparatus for opening collapsed shells of cartons of the slide and shell type, the combination with means for engaging one outer fold of a flattened shell for exerting thrust thereon substantially in the plane defined by the shell, of a member having a surface for engagement by the other outer fold of the shell, said member being yieldably movable by said shell in response to the thrust exerted on-the latter from a position in which said surface is inclined away from the shell toa position substantially. perpendicular to. the direction of thrust exerted on the shell, whereby said member may act first as a cam to incline said shell to the direction of thrust, and there after as an abutment for the end wall of the opened shell, and means acting simultaneously with said'firstnamed means and engaging said shell to impart a double curvature theretoin the direction of the thrust exerted by said first named means to ensure movement of the flattened folds in the proper direction.

*4. In apparatus for opening collapsed shellsof cartons of the slide and shell type, the combination with means for engaging and exerting thrust on the outer folded edges of the shell to urge them toward each other, of means acting simultaneously with said first named means and engaging said shell to impart a double curvature thereto in the direction of the thrustexerted by said first named means to ensure movement'of the flattened folds in the proper direction, saidlast named means including members for engaging opposite sides of said shell at spaced points, and mechanism for moving said members into and out of engagement with said'shell during continued operation of said first named means. n

5. Apparatus for assembling cartons of the slide and shell type comprising a mouth I piece adapted to extend within one end of an opened shell and retain the same in opened condition, a continuous conveyor provided with pusher pieces for thrusting said slide through said mouth-piece and into the shell, and a member carried by each pusher piece for engaging. the rear closure flap of the shell to press the flap against the body of the shell to prevent fouling of the flap on the shell or mouth-piece.

6. In apparatus for assembling cartons of the slide and shell type, the combination witha continuous conveyor, of pusher pieces carried on said conveyor for engagement with a slide to thrust the latter into an opened shell, and yieldable means carried by each pusher piece for engaging the rear closure flap of the shell against the body of the sllllell to prevent fouling of the flap onthe s ell. 1

7. In apparatus for assembling cartons of the slide and shell type, the combination with a mouthpiece adapted to extend within one end of a fully opened shell and retain the same in opened condition, of means for fully opening a, shell and delivering the same to the mouthpiece, a movable Presser I member for engaging said shell to thrust the latter in position on the mouth-piece,

means for thrusting the slide Within the shell, and means for Withdrawing the pressermember from engagement with the shell when insertion of the slide is completed.

In testimony whereof I hereunto aifix my signature.

RUSSELL oLARKsoN, 

